Bisect clang

tools/clang/blink_gc_plugin/tests/base_requires_tracing.cpp

Index: tools/clang/blink_gc_plugin/tests/base_requires_tracing.cpp
diff --git a/tools/clang/blink_gc_plugin/tests/base_requires_tracing.cpp b/tools/clang/blink_gc_plugin/tests/base_requires_tracing.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..87559a85c8c3e58959d882ac4f3364e7e30b96cb
--- /dev/null
+++ b/tools/clang/blink_gc_plugin/tests/base_requires_tracing.cpp
@@ -0,0 +1,21 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base_requires_tracing.h"
+
+namespace blink {
+
+void A::trace(Visitor* visitor) { }
+
+void C::trace(Visitor* visitor) {
+  visitor->trace(m_a);
+  // Missing B::trace(visitor)
+}
+
+void D::trace(Visitor* visitor) {
+  visitor->trace(m_a);
+  C::trace(visitor);
+}
+
+}